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run code in 200+ php & hhvm versions
Bugs & Features
<?php $arr = array( array(5,1), array(4,0), array(4,1), array(1,1) ); // ______ - // | _____ mind. 1 Position komplett offen // || ____ Position mit Teilmengen geliefert // ||| ___ alles komplett // |||| $bitmask = bindec('0001'); printf("%04b\n", $bitmask); foreach ($arr as $w) { if ($w[0] == $w[1]) { $bitmask |= bindec('0010'); } elseif ($w[0] > $w[1]) { $bitmask &= ~bindec('0001'); if ($w[1] == 0) { $bitmask |= bindec('0100'); } } printf("%04b\n", $bitmask); var_dump($bitmask && bindec('0100')); echo "\n\n\n"; } ?>
Output for 4.3.0 - 5.6.30, hhvm-3.10.1 - 3.11.1, hhvm-3.13.2 - 3.17.3, 7.0.0 - 7.1.7
0001 0000 bool(false) 0100 bool(true) 0100 bool(true) 0110 bool(true)
Output for hhvm-3.12.14

Process exited with code 137.